Daikin FTXS/CTXS Mini-split indoor unit terminal cover / mounting plate screw screw size
M4 · 25 mm long
Our records put Daikin FTXS/CTXS Mini-split indoor unit terminal cover / mounting plate screw on M4 screws, 25 mm long.
The record covers installation manual gives dual units: M4 x 1" (25mm).
This entry is marked confirmed and comes from cdn.daikincloud.io.
For reference, M4 is 4 mm across the threads at 0.7 mm pitch. The imperial size people confuse it with: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Daikin FTXS/CTXS Mini-split indoor unit terminal cover / mounting plate screw screw specifications
One row per fitment record. Head, drive are shown only where the source states them; pitch is the ISO coarse pitch for the thread.
| Thread | Length | Pitch | Head | Drive | Where it goes | Status |
|---|---|---|---|---|---|---|
| M4 | 25 mm | 0.7 mm | not stated | not stated | Installation manual gives dual units: M4 x 1" (25mm) | Confirmed |
Fitment records and sources
Installation manual gives dual units: M4 x 1" (25mm)
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- Unplug the appliance and discharge any capacitors before removing covers.
- Diameter: across the threads an M4 screw measures about 4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.7 mm from one thread crest to the next (14.29 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- The record states 25 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source does not name the drive. Standard M4 heads take PH2 for Phillips and T20 for Torx, and a 3 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
- Tightening: no device-specific torque is published in these records. The site's general figure for M4 is about 2.0-3.0 N·m into metal threads and 0.8-1.4 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M4
- Most HVAC chassis hardware in US-market units is imperial; metric shows up mainly on European-made components.
- Manual gives torque only, not screw length/drive type — verify physically before sourcing replacements.
Buy these screws at TechSpare Warehouse
In stock and shipped from South Carolina. Our black screws are Phillips wafer head (low profile); match the head style and length to the original before you order.
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The same screw also fits
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- Ipso commercial washer (Alliance Laundry Systems OEM part) also M4 × 25 mm
- Thermostat and wall control backplates also M4 × 25 mm
- Ring video doorbell mounting hardware also M4 × 25 mm
- Wurth Elektronik WA-SSTIE steel spacer stud also M4 × 25 mm
- Makeblock cap screw round head hex M4 (catalog part) also M4 × 25 mm
- Carbide3D Shapeoko 5 Pro CNC router also M4 × 25 mm
- Panasonic TC-L58E60 also M4 × 25 mm
- Juki MF-7923 / MF-7523 industrial machine also M4 × 25 mm
Questions about Daikin FTXS/CTXS Mini-split indoor unit terminal cover / mounting plate screw screws
- What size screw does Daikin FTXS/CTXS Mini-split indoor unit terminal cover / mounting plate screw use?
- M4 × 25 mm for installation manual gives dual units: M4 x 1" (25mm).
- How long are the screws in Daikin FTXS/CTXS Mini-split indoor unit terminal cover / mounting plate screw?
- The record gives 25 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M4 screw?
- 0.7 mm (coarse), which is the standard pitch for M4 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 3.3 mm and the normal clearance hole is 4.5 mm.
- What screwdriver do I need for Daikin FTXS/CTXS Mini-split indoor unit terminal cover / mounting plate screw?
- The sources do not name the drive. For M4, Phillips heads normally take PH2 and Torx heads T20; socket heads take a 3 mm hex key.
- Can I use an imperial screw instead of M4?
- No. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same. Use a true M4 screw so it does not cross-thread or strip the hole.